[gnutls-devel] GnuTLS | Duplicated key_shares from client are not detected by GnuTLS server (#908)

[Development of GNU's TLS library]

Hubert Kario (@mention me if you need reply) commented:


When there are entries in key_share that don't correspond to groups in supported_groups, the handshake is also not aborted.

Test case for this is in `test-tls13-obsolete-curves.py` (added by https://github.com/tomato42/tlsfuzzer/pull/540)

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